I zapped my Fulltone with a negative tip power supply

My brand new (used) big-box Octafuzz V1, had it for 2 minutes, plugged in a cable to check if it had a battery (it did), then in the rush of testing a bunch of pedals and swapping them out with my standard/negative tip power supply, I accidentally plugged in the Fulltone for 5 milliseconds beffore I realized what I had done - too late - nothing now.

Any tips for fixing this besides shooting a video (which Fulltone now requires) and sending it into them for a $60 repair?